Basilique St-Denis. France's first Gothic building that can be precisely dated, St-Denis was constructed between 1137 and 1281 and was the spiritual defender of the State during the reign of Louis VI (the Fat).
http://www.frommers.com/destinations/paris/attractions/basilique-st-denis
The town of dead kings and living people, according to poet Jean Marcenac, Saint-Denis is a living history book, with its most attractive symbol the Basilica built in honour of Saint-Denis, the first Bishop of Paris who was decapitated in 280.
http://www.uefa.com/uefaeuro/hosts/france/city=50000003/index.html
Some 75 kings and queens, from Dagobert I to Louis XVIII, are buried in the Cathedral Basilica of Saint-Denis. Known as Franciade during the French Revolution, the prevalence of socialist administrations at the start of the last century earned it the nickname 'la Ville Rouge' (the Red City).
http://www.uefa.com/uefaeuro/hosts/france/city=50000003/index.html
St Peter's Basilica Rome - Cost Of A Visit. St. Peter's Basilica is open daily, Apr-Sep 7:00-19:00; Oct-Mar 7:00-18:00. There is also good news in that its free to enter the main St. Peter's Basilica, though there are admission fees for a few parts (see below).
https://www.rometoolkit.com/whattodo/vatican_stpeters.htm
Updating Map... The earliest masterpiece of French Gothic architecture, a royal abbey and... The earliest masterpiece of French Gothic architecture, a royal abbey and major pilgrimage site in the Middle Ages, the Basilica Cathedral assumed its principal role as the burial place for the kings of France as early as the 6th century.
https://www.tripadvisor.com/Attraction_Review-g196589-d232100-Reviews-Basilica_Cathedral_of_Saint_Denis-Saint_Denis_Seine_Saint_Denis_Ile_de_France.html
The first bishop of Paris, St. Denis became the patron saint of the monarchy, and royal burials began here in the 6th century and continued until the Revolution. The sculpture designed for the tombs -- some two stories high -- spans French artistic development from the Middle Ages to the Renaissance.
http://www.frommers.com/destinations/paris/attractions/basilique-st-denis
For the centre of Saint-Denis, get off at Basilique de Saint-Denis station. For the Stade de France, the Saint-Denis-Porte de Paris stop is the closest. Another option is to take the RER B line (to La Plaine-Stade de France station) or RER D (Stade de France-Saint-Denis station).
http://www.uefa.com/uefaeuro/hosts/france/city=50000003/index.html
St Peter's Basilica Rome Official Web Site. St. Peter's was until recently the largest church ever built and it remains one of the holiest sites in Christendom. Contrary to what one might reasonably assume, St. Peter's is not a cathedral - that honour in Rome goes to the Basilica of St John Lateran.
https://www.rometoolkit.com/whattodo/vatican_stpeters.htm
The easiest way to get to the Saint Denis basilica is by Metro (line 13). This should cost 1.70 Euro. Take the metro in the direction of Saint-Denis-Universite. Take the Basilique de St-Denis. The basilica is 5 minutes walk from the metro station and the route is signposted.
http://www.beyond-paris.com/basilica-of-saint-denis.html
For centuries, the kings and queens of France were buirried at the Basilica at Saint Dnnis. Nearly every king from the 10th - 18th century were buried at the Saint Denis Basilica. The tombs were desecrated during the revolution.
http://www.beyond-paris.com/basilica-of-saint-denis.html
cost to enter basilique saint denis official site
The cost to enter the Basilique Saint Denis official site is 1.70 Euro.  The cost to enter the Basilique of Saint Denis is 1.70 Euro.