What is Eggenberg Castle, Graz?
{{Infobox building | name = Eggenberg Palace | native_name= [[Schloss]] Eggenberg {{in lang|de}} | image = Schlosseggenbergluftaufnahme.jpg | alt = | caption = Aerial view looking northwest | former_names = | alternate_names = | map_type = | building_type = palace | architectural_style = [[Gothic architecture|Gothic]] and [[Baroque architecture|Baroque]] | structural_system = | cost = over 105,000 [[guilder]] | location = [[Graz]], [[Styria]], Austria | client = [[Universalmuseum Joanneum]] | owner = [[Styria|The State of Styria]] | current_tenants = Palace State Rooms, Alte Galerie, Coin Collection, Roman Stonework Collection, Archaeology Collection | landlord = | coordinates = {{coord|47.07389|N|15.39129|E|type:landmark_region:AT-6}} | altitude = {{convert|365|m|ft|0|abbr=on}} | start_date = after 1460 ([[medieval]] section), 1625 ([[Baroque]] expansion) | completion_date = ca. 1635 (structure), 1685 (accouterments), 1762 (piano nobile) | inauguration_date = | demolition_date = | height = {{convert|50|m|ft|0|abbr=on}} (central tower) | diameter = 65&nbsp;m x 80&nbsp;m (palace footprint) | other_dimensions = 90,000&nbsp;m² (palace grounds) | floor_count = 3 | floor_area = 8,000&nbsp;m² | main_contractor = | architect = [[Giovanni Pietro de Pomis]] | structural_engineer = | services_engineer = | civil_engineer = | other_designers = [[Hans Adam Weissenkircher]] (court painter) | quantity_surveyor = | embedded = {{designation list | embed = yes | designation1 = WHS | designation1_offname = City of Graz – Historic Centre and Schloss Eggenberg | designation1_date = 1999 <small>(23rd [[World Heritage Committee|session]])</small> | designation1_type = Cultural | designation1_criteria = ii, iv | designation1_number = [http://whc.unesco.org/e