The Ahnenerbe Café
Crysta is the metal city, governed by a central system in order to maintain order and peace. This system and the power supply for the city is all powered by a special crystal of extreme value. Only a select number of people know the location of this crystal.
The buildings all look similar with lights dimly keeping the city lit throughout the night. The central system deemed it necessary to institute a curfew in order to protect its citizens.