like: die Besichtigung → →
die Besichtigungstour ☊ 
chuyến tham quan ☊ 
☊ die Besichtigung ☊ tham quan ☊ ☊ die Besichtigung ☊ xem nhà, thăm quan ☊ ☊ Viewing is by appointment only (= only at a time that has been arranged in advance). ☊ appointment ☊