Learn Turkish: Bu bina şu otel kadar yüksek. - This building is as high as that hotel.

In Turkish, you don't wrap the adjective with two words like we do in English ("as high as"). Instead, you place kadar right after the thing you are comparing to (şu otel), and put the adjective (yüksek) at the very end. The structure literally reads as "This building that hotel as much as high."

Why isn't there a case ending on otel before kadar?

When kadar is used with regular nouns or noun phrases like şu otel (that hotel), the noun stays in its bare dictionary form. You only need to add a case ending (the genitive case) if you are comparing with a personal or demonstrative pronoun on its own, like benim kadar (as much as me) or bunun kadar (as much as this).

I learned that uzun means "tall" or "long". Why is yüksek used here for the building?

While uzun means "tall" when talking about people, or "long" for distances and flat objects, yüksek specifically means "high." In Turkish, structures that rise high off the ground like buildings (bina), mountains, and walls are always described using yüksek, not uzun.

What is the difference between using bu bina and şu otel in the same sentence?

Bu means "this" for something very close to you. Şu means "that" for something a bit further away, but usually still visible or just pointed out. Using both in this sentence creates a natural physical contrast: "this building" (right here where we are) compared to "that hotel" (over there).